This inspection set is made up of our top brands for all GY6 engined 50cc 4-stroke (139QMB/QMA) scooters. Includes all the part most prone to wear, as well as all lubrication required for a service inspection. Set comprises: Semi-synthetic engine oil 10W-40, 150 ml Motul gearbox oil, spark plug, oil strainer, fuel filter, air filter insert.